This project finds its inspiration in the building sites invading Brussels. It explores a material from the invisible spaces, the interstices of our houses. The plastic sheath made of polypropylene is used to protect electric cables. It is heat-resistant and can withstand impacts and crushes. This material is low cost,recyclable and easy to transport. In 2018, Polieco - a company which specializes in the manufacturing of pipes - supports the project by supplying the raw material. The pipe which was hidden in walls now shows itself and is transformed into a textile wall. The process of craft manufacturing creates a discrepancy. Plastic sheath is broken down and put back together like a construction set. The rope connects the system. It’s used for its resistance, elasticity, to make «a whole» from separate elements. Each material remain intact. Nothing is definitely fixed, textile surfaces can be unlaced then reused. Objects are customized products to conform to the architecture of the place. Their behavior gives notions of mobility and flexibility. In the 70s, architect and sociologist Yona Friedman imagines spatial cities made up of mobile structures in which the user himself designs his own built environment. On the trail of these utopias, the project is guided by ecological and social values. The economical use of resources and recovering material falls within this philosophy of poverty. Objects question the limits of a building material and its issues in today’s architecture.